Home / 1,227.93-1,839.54-680.37

Finding the Fourth Proportional to 1,227.93, 1,839.54 and 680.37

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Solution

The fourth proportional to 1,227.93, 1,839.54 and 680.37 is: 1,019.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.93 : 1,839.54 = 680.37 : x
  2. Step 2: Convert to fraction form
    1,227.93/1,839.54 = 680.37/x
  3. Step 3: Cross multiply
    1,227.93x = 1,839.54 × 680.37
  4. Step 4: Simplify right side
    1,227.93x = 1,251,567.83
  5. Step 5: Solve for x
    x = 1,251,567.83/1,227.93
  6. Step 6: Final answer
    x = 1,019.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.